Momentum

Question 1

If objects separate after collision

Answer 1

M1Vi1 + m2Vi2 = m1Vf1 + m2Vf2

Question 2

Objects stick together after collision

Answer 2

M1Vi1 + m2Vi2 = (m1 + m2)Vf

Question 3

Objects dropped onto a moving object

Answer 3

m1Vi1 + m2(0) = (m1 + m2)Vf

Question 4

Explosions

Answer 4

(m1 + m2)Vi = m1Vf1 + m2Vf2

Question 5

What’s the difference between elastic and inelastic collisions

Answer 5

Elastic = P and Ek conserved
Inelastic = only P conserved